EP2859192B1 - Segment d'entrée de flux pour une turbomachine - Google Patents

Segment d'entrée de flux pour une turbomachine Download PDF

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Publication number
EP2859192B1
EP2859192B1 EP13739171.0A EP13739171A EP2859192B1 EP 2859192 B1 EP2859192 B1 EP 2859192B1 EP 13739171 A EP13739171 A EP 13739171A EP 2859192 B1 EP2859192 B1 EP 2859192B1
Authority
EP
European Patent Office
Prior art keywords
inflow
rotor
segment
bores
inflow segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP13739171.0A
Other languages
German (de)
English (en)
Other versions
EP2859192A1 (fr
Inventor
Ingo Förster
Christian Musch
Uwe Zander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP13739171.0A priority Critical patent/EP2859192B1/fr
Publication of EP2859192A1 publication Critical patent/EP2859192A1/fr
Application granted granted Critical
Publication of EP2859192B1 publication Critical patent/EP2859192B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
    • F01D3/02—Machines or engines with axial-thrust balancing effected by working-fluid characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/06—Fluid supply conduits to nozzles or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/06—Fluid supply conduits to nozzles or the like
    • F01D9/065—Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/301—Application in turbines in steam turbines

Definitions

  • the invention relates to a turbomachine comprising a rotor rotatably supported about a rotation axis, rotor blades disposed on the rotor, a casing disposed around the rotor, vanes disposed on the casing, a flow passage interposed between formed in the housing and the housing is arranged for the inflow of steam, an inflow segment, which is arranged in the housing, inflow segment guide vanes, which are arranged in the inflow segment.
  • Turbomachines such as Steam turbines are used for example in the energy supply.
  • such turbomachines comprise a rotatably mounted rotor and a housing arranged around the rotatably mounted rotor.
  • the housing is divided into an inner housing and an outer housing arranged around the inner housing.
  • the rotors of such engineered turbomachines include blades that are disposed between vanes disposed on the inner shell and define a flow passage through which a flow medium flows.
  • steam is the flow medium.
  • the invention has set itself the task of specifying an improved turbomachine.
  • An essential feature here is that bores are carried out, which are arranged in the inflow segment and produce a fluidic connection between the inflow and a relief space, which is arranged between the inflow segment and the rotor.
  • the bores are designed in such a way that a part of an inflow steam is passed through the bores and part of the inflow steam through the inflow segment vanes.
  • the inflow segment has a hub-side ring segment, in which the bores are formed.
  • the bores are seen in the flow direction of the inflow vapor upstream of the inflow segment vanes arranged.
  • a portion of the steam can be discharged directly before flowing through the inflow ring. This allows better cooling.
  • the bores are inclined by an angle ⁇ which lies between 40 ° and 80 ° with respect to a radial direction passing through the axis of rotation. This allows optimal cooling effects to be achieved ; since the swirl of the steam flowing in under the inflow segment is essential for cooling as effectively as possible.
  • the inflow 11 is provided for the flow of steam and designed accordingly.
  • the inner housing 8 has in this area a projection 20 on which an inflow segment 21 is arranged.
  • the inflow segment 21 is substantially formed as a ring and installed in the inner housing 8. At the outer diameter of the inflow segment 21, the inflow segment 21 is fitted in a groove 22.
  • the inflow segment 21 has a hub-side ring segment 23 which is connected to the inner housing 8 via a second sealing element 24.
  • the hub-side ring segment 23 has a sealing groove 25 into which the second sealing element 24 is fitted.
  • the inner housing 8 also has a groove 26 in which the other end of the second sealing element 24 is arranged.
  • the inflow segment 21 has inflow segment vanes 27 integrally formed with the inflow segment 21.
  • FIG. 3 shows a sectional view through the inflow segment 21.
  • inflow segment vane is designated by reference numeral 27.
  • six holes 29 are executed, which are formed in a tangential direction to the discharge chamber 30 at an angle ⁇ .
  • the direction of rotation of the rotor 3 is counterclockwise.
  • the angle ⁇ is explained on the bore 29 in the twelve o'clock position. From the axis of rotation 2 from a reference line 35 is shown in the radial direction. At an angle ⁇ , which is between 40 ° and 80 °, a bore 29 is executed. Through this bore 29, the mass flow M 1 flows . Due to the applied twist of the steam undergoes a change in velocity and thus a reduction in the static temperature of the steam relative to the rotating system, which then leads to a cooling of the surface of the rotor 3 relative to the temperature of the mass flow M tot .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (7)

  1. Turbomachine comprenant
    - un rotor (3) qui est monté tournant autour d'un axe (2) de rotation, des aubes (5) mobiles, qui sont montées sur le rotor (3),
    - une carcasse (8, 9) qui est disposée autour du rotor (3), des aubes (12) directrices qui sont mises dans la carcasse (8, 9),
    - un canal (15) d'écoulement, qui est constitué entre le rotor (3) et la carcasse (8, 9),
    - un conduit (11) d'afflux, qui est disposé dans la carcasse (8, 9) et qui est constitué pour faire affluer de la vapeur,
    - un segment (21) d'entrée qui est disposé dans la carcasse (8, 9),
    - des aubes (27) directrices de segment d'entrée, qui sont disposées dans le segment (21) d'entrée,
    des trous (29) qui sont disposés dans le segment (21) d'entrée et qui ménagent une liaison en technique d'écoulement entre le conduit (11) d'afflux et un espace (30) de décharge disposé entre le segment (21) d'entrée et le rotor (3),
    caractérisée en ce que
    les trous (29) sont inclinés d'un angle α, dans la direction périphérique, compris entre 40° et 80° par rapport à une direction radiale qui passe par l'axe (2) de rotation.
  2. Turbomachine suivant la revendication 1,
    dans laquelle les trous (29) sont constitués de manière à ce qu'une partie d'une vapeur d'afflux passe par les trous (29) et qu'une partie de la vapeur d'afflux passe par les aubes (27) directrice du segment d'entrée.
  3. Turbomachine suivant la revendication 1 ou 2,
    dans laquelle le segment (21) d'entrée a un segment (23) annulaire du côté du moyeu, segment dans lequel les trous (29) sont constitués.
  4. Turbomachine suivant la revendication 1, 2 ou 3,
    dans laquelle les trous (29) sont, considérés dans la direction (32) d'écoulement de la vapeur d'afflux, en amont des aubes (27) directrices du segment d'entrée.
  5. Turbomachine suivant la revendication 1,
    dans laquelle il est constitué six trous (29).
  6. Turbomachine suivant l'une des revendications précédentes,
    dans laquelle la carcasse est sous la forme d'une carcasse (8) intérieure, et une carcasse (9) extérieure est disposée autour de la carcasse (8) intérieure
  7. Turbomachine suivant l'une des revendications précédentes, constituée sous la forme d'une turbine (1) à vapeur.
EP13739171.0A 2012-07-12 2013-07-09 Segment d'entrée de flux pour une turbomachine Not-in-force EP2859192B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13739171.0A EP2859192B1 (fr) 2012-07-12 2013-07-09 Segment d'entrée de flux pour une turbomachine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12176161.3A EP2685051A1 (fr) 2012-07-12 2012-07-12 Segment d'entrée de flux pour une turbomachine
EP13739171.0A EP2859192B1 (fr) 2012-07-12 2013-07-09 Segment d'entrée de flux pour une turbomachine
PCT/EP2013/064429 WO2014009333A1 (fr) 2012-07-12 2013-07-09 Segment d'entrée pour une turbomachine

Publications (2)

Publication Number Publication Date
EP2859192A1 EP2859192A1 (fr) 2015-04-15
EP2859192B1 true EP2859192B1 (fr) 2016-05-25

Family

ID=48803516

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12176161.3A Withdrawn EP2685051A1 (fr) 2012-07-12 2012-07-12 Segment d'entrée de flux pour une turbomachine
EP13739171.0A Not-in-force EP2859192B1 (fr) 2012-07-12 2013-07-09 Segment d'entrée de flux pour une turbomachine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12176161.3A Withdrawn EP2685051A1 (fr) 2012-07-12 2012-07-12 Segment d'entrée de flux pour une turbomachine

Country Status (8)

Country Link
US (1) US20150159486A1 (fr)
EP (2) EP2685051A1 (fr)
JP (1) JP5985748B2 (fr)
KR (1) KR20150036474A (fr)
CN (1) CN104471193B (fr)
IN (1) IN2014DN10499A (fr)
PL (1) PL2859192T3 (fr)
WO (1) WO2014009333A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017114608A1 (de) * 2017-06-30 2019-01-03 Man Diesel & Turbo Se Turbinenzuströmgehäuse einer Axialturbine eines Turboladers

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2294983A (en) * 1941-04-29 1942-09-08 Westinghouse Electric & Mfg Co Steam turbine apparatus
US3429557A (en) * 1966-06-30 1969-02-25 Gen Electric Steam turbine rotor cooling arrangement
US3614255A (en) * 1969-11-13 1971-10-19 Gen Electric Thrust balancing arrangement for steam turbine
US4242041A (en) * 1979-01-15 1980-12-30 Westinghouse Electric Corp. Rotor cooling for double axial flow turbines
JPS59153901A (ja) * 1983-02-21 1984-09-01 Fuji Electric Co Ltd 蒸気タ−ビンロ−タの冷却装置
JPH0734808A (ja) * 1993-07-26 1995-02-03 Mitsubishi Heavy Ind Ltd 蒸気タービン
JPH0742508A (ja) * 1993-08-02 1995-02-10 Mitsubishi Heavy Ind Ltd 蒸気タービンのロータ冷却装置
JPH09125909A (ja) * 1995-10-30 1997-05-13 Mitsubishi Heavy Ind Ltd 複合サイクル用蒸気タービン
JP2004197696A (ja) * 2002-12-20 2004-07-15 Kawasaki Heavy Ind Ltd 旋回ノズルを備えたガスタービン
CN100378308C (zh) * 2006-07-07 2008-04-02 姜伟 叶轮加压转子喷射式燃气轮机
JP5558120B2 (ja) * 2010-01-12 2014-07-23 株式会社東芝 蒸気タービンのロータ冷却装置及びこの冷却装置を備えた蒸気タービン

Also Published As

Publication number Publication date
JP5985748B2 (ja) 2016-09-06
PL2859192T3 (pl) 2016-11-30
CN104471193B (zh) 2016-08-24
JP2015522130A (ja) 2015-08-03
EP2859192A1 (fr) 2015-04-15
CN104471193A (zh) 2015-03-25
KR20150036474A (ko) 2015-04-07
US20150159486A1 (en) 2015-06-11
IN2014DN10499A (fr) 2015-08-21
EP2685051A1 (fr) 2014-01-15
WO2014009333A1 (fr) 2014-01-16

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